Douple-acting hour-cycle explosion-engine



C. 0. LUKUS. DOUBLE ACTING FOUR CYCLE EXPLOSION ENGINE.

APPLICATIN FILED ALIGJQ. 1920.

Patented Dec. 6, 1921 3 SHEETS-SHEET l.

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C. 0. EOUKUS. DOUBLE ACTNG EOUR CYCLE EXPLOSlON ENGINE. APPLlcATloN HLED AUGJS. 1920.

L Patented Bee. 5,1921

3 SHEETSfSHEET 2.

Charles QoukuS INVENTOR WITNESSES C. D. LOUKUS.

DOUBLE CTLNG FOUR CYCLE EXPLOSION ENGINE- APPLICATION FILED Aufa.19.1920.

1,399,854, v Patente Dec. 6, 1921 3 SHEETS-SHEET 3- INVENTOR ted Dea. 6, K512i,

this application me@ m is. shown.

VVT.

To all @im Beat a cltlzeu of LA* sa e, @l w ich arts ma iucture to steam but a nd nd both the engine ebpess fof me with an 65 'the power dement i@ i g; foul' thls apphcatlol t o h heads 2 bshs have 1n 1011 N lubr d exms inlet ion o 'n an Cle type o mating :anni c@V milsj en' L The object a four he explosie .1; :my

a to a si l5 which 1n im ord 12, 13, em passonlnu'ed l and there ,35

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, nsttutes a im' consructon 80 si'. vzave stem 16 we head h u s 1de l? c 8. ch guide e espectlve ends 3, as ih@ case may a spring-l @masia the mp p, F s l.) 1s

'iems of th wah and @ad r ends, O named mea e De

secon@ ngi@ operativ.

im@ en rocker am s gle pisonn 'for t? ne valves and of he c connected "s 30 adjacent to t and@ si cond. and e actua'gon o. ah'es anni? The rom s, con:- aled 'dass the accQn his specla..

sin

.exhaus 25 Vaves .Wi so lo s mark 11 he dr mod ned @jv pim each in the 165 nat 27 ppet 18 or l5 as the case is loca There sha1-Et. 2'? and sts 6.-

cve 4m ted a cam s d supports 28 ps 6. uhdt one and with a beve il@ 'led Jake

n bemin path o? which m im@ two 'rams y2( pinion Q9 meshing with another bevel pinion 30 on a shaft 3l having a step bearing 32 adjacent to thes haft 7 and there carrying a bevel gear wheel 33 meshing With another bevel gear Wheel 34 fast on shaft 27. The shaft 27 also carries other cams 35 engaging respective rollers 36 on the rocker arms 37, each mounted at the end remote from thel roller 36 on a pivot pin 38 in one oiz the posts 6. Each lrocker arm 37 is connected by a link 38 Withla respective 4one of the rocker arms 20. 1y

The cycle of operations is that of an ordinary Jfoar-cycle explosion engine except that the operations are eii'eetive on opposite sides ot the piston 4 in sach manner that the operations overlap. That 1s when a charge is entering the cylinder on one lside oi the pis-- ton an explosion may be taking place on the other side of the piston, or the explosion may take place when scavenging is occnrring on the other side ot the piston. Thatever be the order ot' operations` the engine is suitably timed to cause the intake, compression, explosion and-exhaust on one side of the pist-on to be so related to the` like operations on the other side of the piston that the piston receives two power impulses for each single power impulse of the ordinary four cycle engine. The powei` ol' tlw'engine is therefore applied evenly, and correepondihgly more power is developed with a expenditure of energy than is customary. The application. of power to the shaft is similar to that of a two-cycle engine with the advantage of a considerable increase in the power impulses. Since the explosion chambers are arranged on both sides oi' the piston where each acts with the eilicieney ot a toux-cycle engine, the combined etiiciency of the engine is materially in ad vance of a two-cycle engine. The ellect is that of tivo :tour-cycle engines working in alternation but more economically than occurs with two separate four-cycle enginesv Working side by side or lin tandem.

haust ports for both ends thereof, spring controlled valves for the ports, rocker arms engaging the valves at one end of the cylinder, other rocker arms, engaging the valves at the other end of the cylinder, still other rocker arms connected to thelirst named rocker arms and adjacent to the second named rocker arms, and a single cam shaft located between the second and third named rocke arms to canse the actuation ot' all the rocker arms for alternately and consecutively controlling the inlet and exhaust valves, the second and third named rocker arms being pivoted independentlyT ot' each other on the engine.

2.` A double acting explosion engine provided with a cylinder, a single piston in the cylinder dividing the latter into opposed explosion chambers, inlet and eXv haust ports for each chamber, spring-held inlet and exhaust valves for the ports, rocker arms located at one end of the cylinder and adjacent onepair of valves for operating said valves, a second pair of rocker arms mounted at the other end of the cylinder for operating the exhaust and intake. valves located thereon, other rocker arms located between the first and second pairs of rocker arms and connected to the first mentioned pair of rocker arms, a cam shaft 'adjacent .oneend of the cylinder and located between the second and third pairs of rocker arms and in an oifset oi the engine, separate pairs of cams on the shaft for operating tbc second and third pairs of rocker arms, and` means ior operating the cam shaft, the shaft and pairs ot' levers being located within the contines ofA the engine cylinder.

In testimony, that I claim the toil'egoipg. my own, I have hereto aiixed my signa-` ture.

CHARLES o. LoUKUs. 

